dji SNAIL 2305 User manual

DJI SNAIL
2305 Racing Motor
V1.0 2016.12
User Guide
使用说明
使用說明
ユーザーガイド
사용자 가이드
Bedienungsanleitung
Guía del usuario
Guide de l’utilisateur

EN
CHS
CHT
JP
KR
DE
ES
FR
Contents
User Guide 2
使用说明 12
使用說明 20
ユーザーガイド 28
사용자가이드 38
Bedienungsanleitung 47
Guía del usuario 58
Guide de l’utilisateur 68
Compliance Information 78

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EN
Disclaimer and Warning
Thank you for purchasing DJI™ Snail 2305 Racing
Motor (hereinafter referred to as “product”).
Read this disclaimer carefully before using this
product. By using this product, you hereby
agree to this disclaimer and signify that you have
read it fully. Please install and use this product
in strict accordance with the User Guide. SZ
DJI TECHNOLOGY CO., LTD. and its afliated
companies assume no liability for damage(s) or
injuries incurred directly or indirectly from using,
installing or retting this product improperly, including
but not limited to using non-designated accessories.
DJI is a trademark of SZ DJI TECHNOLOGY CO.,
LTD. (abbreviated as “DJI”) and its afliated
companies. Names of products, brands, etc.,
appearing in this document are trademarks or
registered trademarks of their respective owner
companies. This product and document are

3
EN
copyrighted by DJI with all rights reserved. No part
of this product or document shall be reproduced
in any form without the prior written consent or
authorization of DJI.
This disclaimer is produced in various languages.
In the event of divergence among different versions,
the Chinese version shall prevail when the product
in question is purchased in China, and the English
version shall prevail when the product in question is
purchased in any other region.
Introduction
The Snail 2305 Racing Motor is designed for racing
multirotor aircraft and features a thrust margin that
is ten times its rated capacity. Using advanced
computer algorithms, the 2305 motor is more
efcient and more stable when producing maximum
thrust. Its rugged structure is a direct result of
impact analysis and drop tests.

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In the Box
2305 Racing Motor ×1 Screws ( M3×5, M3×6)
Mounting the Motors
The dimensions and thread sizes of the motor are
illustrated below. Ensure they are compatible with
your frame arms before mounting the motors.
28.2 mm
17.3 mm
ф29 mm
ф2.95 mm

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Assembly hole on the bottom Assembly hole on the top
19 mm
16 mm
4 × M3
Thread Depth
3 mm
10.3 mm
3 × M2
Thread Depth
3 mm
Use a suitable propeller adapter and
airframe that can withstand the large thrust
delivered by the Snail Racing Propulsion
System.
Choose an appropriate screw length and
screw size according to the depth of the
assembly hole and thickness of the motor
mounting plate. Using screws that are too
long or too large may not be able to secure
the motor.

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Ensure the motors rotate smoothly in the
right direction before takeoff.
When mounting or removing the motors,
be careful to prevent foreign bodies from
entering the base screw holes.
Refer to the DJI Snail Racing Propulsion
System User Manual for more information.
Specications
Stator Size 23 × 5mm
KV 2400rpm/V
Weight (Without Cables) 27.8g

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ESC Conguration
Calibrate the throttle range and switch the motor
rotation direction using the remote controller.
1. Power on the remote controller and receiver.
Ensure a strong link between them. Push the
throttle stick all the way up. The motor will start a
double beep, single beep sequence.
2. Then the warning sound will alternate between a
quick single beep and a quick double beep. Pull
the throttle stick all the way down after hearing
a single beep to calibrate the throttle. Pull the
throttle stick all the way down after hearing
a double beep to reverse the motor rotation
direction. By rotating the desired motor quickly
in any direction, this motor’s rotation direction will
be changed.
3. The warning sound becomes a chime when
completed.
4. Restart the ESC after reversing its rotation direction.

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System Status Beep Codes
The motors will beep when the Snail is in use. The
table below contains more information about the
warning sound.
Alarm Description
Chime Ready to work.
Rapid Beeping
Minimum throttle signal not
reached. Check the ight
controller, remote controller or
remote controller receiver.
Slow Beeping No throttle signal.
Alternating Single
and Double Beeps
Using the remote controller
for conguration and set
motor rotation direction.

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2305 Racing Motor Performance
η
P
T
I
80
70
100
90
60
50
40
30
20
10
0
5000 1500010000 20000 25000 30000 35000
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
800
700
600
500
400
300
200
100
0
250
200
150
100
50
0
(N·m)
T
I (A)P (W)
η (%)
N (rpm)
η- Efciency, T - Torque, P- Output Power, I- Current, N-
Rotational Speed
The data above contains theoretical values measured with
an input voltage of 14.8V, for reference only. When operating
at a temperature of 25°C with no additional cooling devices,
the motor cannot operate with a current more than 50A.

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It can support short term operation (about 1 to 10 sec) with a
current between 25A and 50A, and continuous operation with
a current under 25A. The motor run time should depend on
the actual environmental temperature and cooling conditions.
Characteristic Parameters
Speed Constant 2400rpm/V
Torque Constant 0.0054267N ∙ m/A
Back Electromotive
Force Constant 0.0056364 v ∙ s/rad
Line-to-Line Inductance 14μH
Mechanical Time Constant 200ms
Line-to-Line Resistance 61mΩ
Motor Rotor Inertia 1.84kg∙mm²

EN
Thermal Time Constant 100s
Total Rotor Inertia
(5048S Propeller Included) 6.62 kg∙mm²
Thiscontentissubjecttochange.
Download the latest version from
http://www.dji.com/snail
DJIisatrademarkofDJI.
Copyright©2016DJIAllRightsReserved.

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免责声明
感谢您购买 DJITM Snail 竞速多旋翼动力系统系列配
件。在使用 Snail 竞速多旋翼动力系统系列配件之前，
请仔细阅读本声明，一旦使用，即被视为对本声明全
部内容的认可和接受。请严格遵守说明安装和使用该
产品。因用户不当使用、安装、改装（包括使用非指
定的 DJI 零配件，如：电机、电调、螺旋桨等）造成
的任何损失，深圳市大疆 TM 创新科技有限公司及其关
联公司将不承担任何责任。
DJI 是深圳市大疆创新科技有限公司及其关联公司的
商标。本文出现的产品名称、品牌等，均为其所属公
司的商标或注册商标。本产品及说明为深圳市大疆创
新科技有限公司版权所有。未经许可，不得以任何形
式复制翻印。
关于不同语言版本的免责声明可能存在的语义差异，
中国以中文版为准，其他地区以英文版为准。

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简 介
Snail 2305 竞速电机是一款专业应用于竞速多旋翼飞
行器的动力电机，拉力裕量是额定拉力的十倍以上且
爆发力强。先进的计算机算法有效提高效率，保证大
拉力下的表现优异稳定。同时，根据竞速多旋翼飞行
器的使用场景，进行了力学冲击仿真及科学的跌落测
试，结构强度和耐摔性均得到了保证。
物品清单
2305 竞速电机 ×1螺丝（M3×5，M3×6）

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安装电机
参考电机尺寸将电机安装到合适的力臂上。
电机顶部安装孔电机底部安装孔
28.2 mm
17.3 mm
ф29 mm
ф2.95 mm
19 mm
16 mm
4 × M3
螺纹深度
3 mm
10.3 mm
3 × M2
螺纹深度
3 mm

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Snail 竞速多旋翼动力系统的拉力较大，务必
确保您所选用的电机固定座及机架的结构强
度与动力系统提供的拉力匹配。
请注意螺纹孔尺寸和螺纹深度。安装电机时，
请根据螺纹深度和您使用的电机固定座厚度，
选择合适的螺丝。若使用过长的螺丝，拧入后
可能导致电机无法固定。
起飞前请检查电机是否可以流畅旋转。
安装及拆卸电机时，切勿使异物进入电机底部
的安装孔。
更多内容，请参阅《DJI Snail 竞速多旋翼动力
系统用户手册》。
产品规格
定子尺寸 23×5 mm
KV 值2400 rpm/V
重量（不含线） 27.8 g

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使用遥控接收系统设置参数
用户可以通过遥控接收系统进行油门校准及电机转向
切换。
1. 打开遥控接收系统且遥控器和接收器通讯正常后，
将遥控器油门杆推至最高，此时电机进入编程模式，
电机鸣音为 B---B-B---B。
2. 紧接着电机鸣音方式变为 B-BB-B-BB 循环，在 B
一声后将遥控器油门杆下拉至最底可进行油门校
准；在 BB 两声后将遥控器油门杆下拉至最底可进
行电机正反向切换，此刻以任意方向快速旋转需要
改变转向的电机，完成正反向切换。
3. 设置成功后，电机鸣音为正常开机音。
4. 如进行的是电机正反向切换，切换成功后需重启
电调。

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电机提示音描述
使用时，请根据电机鸣音判断产品是否正常工作。如
果出现异常状态鸣音，请排查故障。
正常状态鸣音 描述
开机音 系统就绪
异常状态鸣音 描述
BBBB…… 油门输入不在最小值，请检查
飞控、接收机或遥控器设置
B--B--B…… 无油门输入
B---B-B---B 通过遥控接收系统设置参数
（油门校准以及正反向切换）

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2305 电机性能
性能曲线
η- 电机效率，
T - 扭矩，P- 输出功率，I- 电流，N- 转速
以上数据均为输入电压 14.8 V 时的理论值，仅供参考。在
室温 25℃、无额外冷却装置的情况下，电流超过 50 A 为不
可工作区域，25 - 50A 为短时（约 1 -10s）工作区域，25
A 以下为可持续工作区域。实际使用时，请根据工作环境温
度和散热条件控制电机运行时间。
η
P
T
I
80
70
100
90
60
50
40
30
20
10
0
5000 1500010000 20000 25000 30000 35000
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
800
700
600
500
400
300
200
100
0
250
200
150
100
50
0
(N·m)
T
I (A)P (W)
η (%)
N (rpm)